.mj-back-top-show{
    display: block !important;
}

.mj-back-top-inner{
    background-color: rgba(0,0,0,.6);
    border-radius: 2px;
    box-shadow: 0 1px 3px rgb(0 0 0 / 20%);
    transition: all .2s ease-in-out;
}

.mj-back-top{
    position: fixed;
    z-index: 50;
    cursor: pointer;
    display: none;
}

.mj-back-top i{
    color: #fff;
    font-size: 24px;
    padding: 8px 10px
}